tests/language/function_subtype_factory1_test.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Dart test program for constructors and initializers.

// Check function subtyping with type variables in factory constructors.

import 'package:expect/expect.dart';

class C<T> {
  factory C(void foo(T t)) => new C.internal();
  C.internal();
}

void method(String s) {}

void main() {
  Expect.isNotNull(new C<String>(method));
  try {
    new C<bool>(method);
    Expect.isFalse(isCheckedMode());
  } catch (e) {
    Expect.isTrue(isCheckedMode());
  }
}

isCheckedMode() {
  try {
    var i = 1;
    String s = i;
    return false;
  } catch (e) {
    return true;
  }
}